8mm Forum: Cleaning Elmo F1.0 Lens

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Topic: Cleaning Elmo F1.0 Lens

Adam Deierling
Jedi Master Film Handler

Posts: 717
From: OH
Registered: Nov 2010

posted September 13, 2013 08:10 AM

Does anyone here know how to disassemble the Elmo f1.0 lens for cleaning? I urgently need help!

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Dominique De Bast
Film God

Posts: 4486
From: Brussels, Belgium
Registered: Jun 2013

posted September 13, 2013 11:33 AM

I don't know if they include the 1.0 lens as I cannot open the file (because I haven't the "zip" programm on my computer) but here is the service manual for the ST 1200 http://www.mondofoto.com/manuals/elmo+st1200+service+manual/
Hope it helps.

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Dominique

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Adam Deierling
Jedi Master Film Handler

Posts: 717
From: OH
Registered: Nov 2010

posted September 13, 2013 05:26 PM

Thanks Dominique, but It wasn't in there. I figured it out anyways. The lens unscrews from both ends. Tight but it will come loose. Hard to believe how dirty the inside of this thing was.

Now to the next step. Figure out why the zoom is so tight!

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Paul Adsett
Film God

Posts: 5003
From: USA
Registered: Jun 2003

posted September 13, 2013 07:01 PM

Hi Adam,
I have been able to remove the big front lens from my Elmo f1.0, but I cannot get any of the others out for cleaning. Are all the lenses removeable, and how does it unscrew from the small end (closest to the projector)?

--------------------
The best of all worlds- 8mm, super 8mm, 9.5mm, and HD Digital Projection,
Elmo GS1200 f1.0 2-blade
Eumig S938 Stereo f1.0 Ektar
Panasonic PT-AE4000U digital pj

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Adam Deierling
Jedi Master Film Handler

Posts: 717
From: OH
Registered: Nov 2010

posted September 13, 2013 07:50 PM

Yes the rear element unscrews but is nearly impossible to get off without the right tool. I use a rubber strap pipe wrench. Works fantasticly well! Helps to have two so you can grip both the large cylinder and the small rear element. But once apart you can really give it a good cleaning.

I found out why mine was so stiff. The inner cylinder was torqued too much making it compress in the center causing it to be too tight. I was able to torque it the opposite direction making it loosen up. So far seems to be working better!

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Paul Adsett
Film God

Posts: 5003
From: USA
Registered: Jun 2003

posted September 13, 2013 08:58 PM

Thanks for that tip Adam. How many lenses are there in the f1.0 and can you get to all of the surfaces for cleaning once you get it open?

--------------------
The best of all worlds- 8mm, super 8mm, 9.5mm, and HD Digital Projection,
Elmo GS1200 f1.0 2-blade
Eumig S938 Stereo f1.0 Ektar
Panasonic PT-AE4000U digital pj

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Maurice Leakey
Film God

Posts: 5895
From: Bristol. United Kingdom
Registered: Oct 2007

posted September 13, 2013 09:05 PM

It's always puzzling how dirt can get inside a lens, or does it only affect a zoom lens?

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Maurice

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Adam Deierling
Jedi Master Film Handler

Posts: 717
From: OH
Registered: Nov 2010

posted September 13, 2013 11:04 PM

As I have discovered, there are many individual pieces of glass. More than you think...lol

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Barry Fritz
Phenomenal Film Handler

Posts: 1061
From: Burnsville, MN, USA
Registered: Dec 2009

posted September 13, 2013 11:16 PM

Dominique:
Get the free version of Winzip here:
http://www.winzip.com/downwz.htm

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Joe Taffis
Phenomenal Film Handler

Posts: 1592
From: United States
Registered: Jun 2003

posted September 14, 2013 08:48 AM

Adam, I posted a photo of the disassembled F1.0 lens in this earlier thread by Paul. Removing the rear of the lens is not necessary to clean all of the elements, it can all be done from the front, including the inside of the rear element: http://8mmforum.film-tech.com/cgi-bin/ubb/ultimatebb.cgi?ubb=get_topic;f=1;t=003019

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Joe Taffis

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Dominique De Bast
Film God

Posts: 4486
From: Brussels, Belgium
Registered: Jun 2013

posted September 14, 2013 08:54 AM

Barry, the site asks me to buy someting to get the download free.

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Dominique

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Vidar Olavesen
Film God

Posts: 2232
From: Sarpsborg, Norway
Registered: Nov 2012

posted September 14, 2013 02:49 PM

You can get an older version if that's okay here : http://nmi.no/download/drivere.htm

Last choice on the page

It will pop up with a message every time, just click Use evaluation

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